Shoulder instability occurs when the arm’s ball joint moves in and out of the shoulder socket joint. Chronically unstable shoulders can lead to loose shoulder joints that slip out of place repeatedly.

Shohei Ohtani (17) of the Los Angeles Dodgers grimaces after injuring his left shoulder during an attempt to steal second base in the seventh inning of Game 2 of the World Series. (Photo by Keith ...

Many people have heard the term shoulder instability but have wondered what that means. So, what is shoulder instability? Many structures are responsible for stabilizing your shoulders. This includes ...